<template>
  <div class="login_container">
    <div class="login_box">
      <!--头像区域-->
      <div class="avatar_box">
        <img src="../assets/logo.png" alt />
      </div>
      <!--登录表单区域-->
      <el-form
        ref="loginFormRef"
        :model="loginForm"
        :rules="loginFormRules"
        label-width="0px"
        class="login_form"
      >
        <!--用户-->
        <el-form-item prop="username">
          <el-input v-model="loginForm.username" prefix-icon="iconfont icon-lianxirenguanli"></el-input>
        </el-form-item>
        <!--密码-->
        <el-form-item prop="password">
          <el-input v-model="loginForm.password" prefix-icon="el-icon-search" show-password></el-input>
        </el-form-item>
        <!--按钮-->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
      <!-- s -->
    </div>
  </div>
</template>
<script>
// import { Message } from 'element-ui'
export default {
  data () {
    return {
      // 这是登录表单的数据绑定对象
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      // 这是表单的验证规则对象
      loginFormRules: {
        // 验证用户名是否合法
        username: [
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          { min: 3, max: 5, message: '长度在 3 到 5 个字符', trigger: 'blur' }
        ],
        // 验证密码是否合法
        password: [
          { required: true, message: '请输入登录密码', trigger: 'blur' },
          { min: 6, max: 12, message: '长度在 6 到 12 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    // 重置表单
    resetLoginForm () {
      // console.log(this)
      this.$refs.loginFormRef.resetFields()
    },
    // 点击登录之后的验证
    login () {
      this.$refs.loginFormRef.validate(async valid => {
        if (!valid) return
        // console.log(valid)
        const { data: res } = await this.$http.post('login', this.loginForm)

        //  console.log(res)
        if (res.meta.status !== 200) return this.$message.error('登录失败！')
        // this.$message.success('登录成功！')
        // 登录成功
        this.$message({
          showClose: true,
          message: '恭喜你，这是一条成功消息',
          type: 'success'
        })
        // 将token值保存在sessionStorage中
        window.sessionStorage.setItem('token', res.data.token)
        // 页面跳转
        setTimeout(() => {
          this.$router.push('/home')
        }, 1000)
      })
    }
  }
}
</script>

<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
}
.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  right: 0;
  margin: auto;
  .avatar_box {
    height: 130px;
    width: 130px;
    border: 1px solid #ccc;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    transform: translate(-50%, -50%);
    background: #fff;
    left: 50%;
    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background: #eee;
    }
  }
}
.btns {
  text-align: right;
}
.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 10px;
  box-sizing: border-box;
}
</style>
